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公开(公告)号：US09495984B2
公开(公告)日：2016-11-15
申请号：US14886870
申请日：2015-10-19
发明人： Hongxing Yuan , Jinshan Li , Zhong Shi
CPC分类号： G11B5/4866 , G02B6/00 , G02B6/122 , G02B6/34 , G11B5/6088 , G11B7/1206 , G11B7/124 , G11B7/1384 , G11B2005/0021
摘要： An apparatus includes a waveguide with first and second sections, and a junction coupling the first and second waveguide sections together. The first waveguide section has a first reflective device and the second section comprising a second reflective device arranged to generate a standing wave in the waveguide with maximum energy wave intensity at a target region of the waveguide in response to an incident energy wave being provided into at least one of the waveguide sections.
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2.发明授权Interfering near field transducer having a wide metal bar feature for energy assisted magnetic recording 有权干扰具有宽金属棒特征的近场传感器用于能量辅助磁记录公开(公告)号：US09007879B1
公开(公告)日：2015-04-14
申请号：US14324294
申请日：2014-07-07
发明人： Jiangrong Cao , Michael V. Morelli , Matthew R. Gibbons , Peng Zhang , Brad V. Johnson , Hongxing Yuan
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An apparatus for energy assisted magnetic recording of a storage disk include a plurality of dielectric waveguide cores configured to direct received incident light energy to a target, and a near field transducer (NFT) configured to focus light energy received from the plurality of waveguide cores and to transmit the focused light energy onto the storage disk surface to generate a heating spot on the storage disk. The NFT includes a plurality of propagating surface plasmon polariton (PSPP) elements that are energized by the light energy from the waveguide cores. Each of the PSPP elements has a plasmonic metal bar disposed above a single waveguide core in a longitudinal alignment. Each metal bar has a width at least twice the width of the heating spot generated on the storage disk.
摘要翻译： 用于存储盘的能量辅助磁记录的装置包括：多个电介质波导芯，被配置为将接收的入射光能引导到目标;以及近场换能器（NFT），被配置为聚焦从所述多个波导芯接收的光能，以及 将聚焦的光能传递到存储盘表面上以在存储盘上产生加热点。 NFT包括由波导芯的光能激励的多个传播表面等离子体激元（PSPP）元件。 每个PSPP元件具有在纵向对准中设置在单个波导芯上方的等离子体金属棒。 每个金属棒的宽度至少是存储盘上产生的加热点宽度的两倍。
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3.发明授权Systems and methods for characterizing near field transducer performance at wafer level using asymmetric interference waveguides 有权使用不对称干涉波导在晶片级表征近场传感器性能的系统和方法公开(公告)号：US08836949B1
公开(公告)日：2014-09-16
申请号：US13621728
申请日：2012-09-17
发明人： Zhong Shi , Michael V. Morelli , Hongxing Yuan
CPC分类号： G11B5/3166 , G02B6/1226 , G11B2005/0021
摘要： Systems and methods and apparatuses for characterizing near field transducer performance at wafer level using asymmetric interference waveguides are provided. One such system includes a light source, an input grating configured to receive light from the light source, a first waveguide arm and a second waveguide arm, each configured to receive the light, a surface plasmon receptor optically coupled to the first waveguide arm and the second waveguide arm and configured to receive light from the first waveguide arm in a first direction and the second waveguide arm in a second direction opposite of the first direction, where the first and the second waveguide arms are configured to induce a preselected phase difference in light arriving at the surface plasmon receptor, and an output grating optically coupled to the surface plasmon receptor, and a light detector coupled to, and configured to detect light from, the first output grating.
摘要翻译： 提供了使用非对称干涉波导在晶片级表征近场传感器性能的系统和方法和装置。 一个这样的系统包括光源，被配置为接收来自光源的光的输入光栅，第一波导臂和第二波导臂，每个配置用于接收光;光学耦合到第一波导臂的表面等离子体受体和 第二波导臂并且被配置为沿着第一方向从第一波导臂接收光，而第二波导臂在与第一方向相反的第二方向上接收，其中第一和第二波导臂被配置为在光中引入预选的相位差 到达表面等离子体激元受体，以及光学耦合到表面等离子体激元受体的输出光栅，以及耦合到并且被配置为检测来自第一输出光栅的光的光检测器。
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4.发明授权Method and system for providing a HAMR writer having improved optical efficiency 有权提供具有改善的光学效率的HAMR写入器的方法和系统公开(公告)号：US09384765B1
公开(公告)日：2016-07-05
申请号：US14864665
申请日：2015-09-24
发明人： Jianwei Mu , Hongxing Yuan , Michael V. Morelli , Sergei Sochava
CPC分类号： G02B6/122 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A heat-assisted magnetic recording (HAMR) write apparatus includes a laser and has an air-bearing surface (ABS) that resides in proximity to a media during use. The HAMR write apparatus includes a write pole that writes to the media, coil(s) for energizing the write pole and a waveguide optically coupled with the laser. The waveguide includes an entrance distal from the ABS and a bottom proximate to the ABS. The waveguide also includes a mode converter, a mode stripper optically coupled with the mode converter and an inverse tapered section optically coupled with the mode stripper. The mode converter has sides converging from a first width proximate to the entrance to a second width distal from the entrance and less than the first width. The mode stripper is between the inverse tapered section and the mode converter. The inverse tapered section has an entrance and an exit wider than the entrance.
摘要翻译： 热辅助磁记录（HAMR）写入装置包括激光器并且在使用期间具有驻留在介质附近的空气轴承表面（ABS）。 HAMR写装置包括写入磁极的写极，用于激励写磁极的线圈和与激光器光耦合的波导。 波导包括远离ABS的入口和靠近ABS的底部。 波导还包括模式转换器，与模式转换器光学耦合的模式剥离器和与模式剥离器光学耦合的倒锥形部分。 模式转换器具有从接近入口的第一宽度到远离入口的第二宽度并且小于第一宽度的侧边会聚的侧面。 模式剥离器在逆锥形部分和模式转换器之间。 倒锥部具有比入口宽的入口和出口。
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5.发明授权Systems and methods for suppressing background energy of a waveguide in an energy assisted magnetic recording system 有权用于抑制能量辅助磁记录系统中的波导的背景能的系统和方法公开(公告)号：US09001629B1
公开(公告)日：2015-04-07
申请号：US13664981
申请日：2012-10-31
IPC分类号： G11B11/00 , G11B5/02 , G11B11/105
CPC分类号： G11B11/105 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： Systems and methods for suppressing the background energy of a waveguide in an EAMR system are provided. One such system includes a near field transducer having a disk section and a pin section extending from the disk section to an air bearing surface of a slider, a waveguide having a core and a cladding, where the waveguide is configured to couple light energy to the near field transducer, where the cladding is configured to substantially surround the core, and a recess portion positioned between the core and the air bearing surface.
摘要翻译： 提供了用于抑制EAMR系统中的波导的背景能量的系统和方法。 一种这样的系统包括具有盘部分和从盘部分延伸到滑块的空气轴承表面的销部分的近场换能器，具有芯和包层的波导，其中波导被配置为将光能耦合到 近场传感器，其中所述包层构造成基本围绕所述芯，以及位于所述芯和所述空气支承表面之间的凹部。
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公开(公告)号：US08811129B1
公开(公告)日：2014-08-19
申请号：US14037235
申请日：2013-09-25
发明人： Hongxing Yuan , Shing Lee , Zhong Shi , Jinshan Li
IPC分类号： G11B11/00
CPC分类号： G11B5/64 , G11B5/72 , G11B5/7325 , G11B2005/0021
摘要： A magnetic recording media is disclosed. The media comprises a substrate, a recording layer disposed over the substrate, and a metallic layer disposed between the recording layer and the substrate. The recording layer is configured to receive an electromagnetic radiation, absorb a first portion of the electromagnetic radiation, and transmit a second portion of the electromagnetic radiation. The metallic layer comprises a non-magnetic metal and configured to reflect at least some of the second portion of the electromagnetic radiation towards the recording layer.
摘要翻译： 公开了一种磁记录介质。 介质包括衬底，设置在衬底上的记录层和设置在记录层和衬底之间的金属层。 记录层被配置为接收电磁辐射，吸收电磁辐射的第一部分，并传输电磁辐射的第二部分。 金属层包括非磁性金属并且被配置为将电磁辐射的第二部分中的至少一些朝向记录层反射。
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公开(公告)号：US09190085B1
公开(公告)日：2015-11-17
申请号：US14321786
申请日：2014-07-01
发明人： Hongxing Yuan , Jinshan Li , Zhong Shi
CPC分类号： G11B5/4866 , G02B6/00 , G02B6/122 , G02B6/34 , G11B5/6088 , G11B7/1206 , G11B7/124 , G11B7/1384 , G11B2005/0021
摘要： An apparatus includes a waveguide with first and second sections, and a junction coupling the first and second waveguide sections together. The first waveguide section has a first reflective device and the second section comprising a second reflective device arranged to generate a standing wave in the waveguide with maximum energy wave intensity at a target region of the waveguide in response to an incident energy wave being provided into at least one of the waveguide sections.
摘要翻译： 一种装置包括具有第一和第二部分的波导和将第一和第二波导部分连接在一起的结。 所述第一波导部分具有第一反射装置，所述第二部分包括第二反射装置，所述第二反射装置被布置成响应于入射能量波被设置在所述波导中的所述波导的目标区域处以最大的能量波强度在所述波导中产生驻波 至少一个波导部分。
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8.发明授权Near field transducer with high refractive index pin for heat assisted magnetic recording 有权用于热辅助磁记录的具有高折射率针的近场传感器公开(公告)号：US08971160B1
公开(公告)日：2015-03-03
申请号：US14227340
申请日：2014-03-27
CPC分类号： G11B5/40 , G11B5/3136 , G11B5/314 , G11B2005/0021
摘要： An HAMR NFT pin and main body structure comprising a pin material with high index of refraction and low absorption coefficient is disclosed. The disclosed NFT pin provides a comparable media absorption efficiency to the conventional Au pin while improving on overall NFT reliability. The protrusion of the NFT pin is reduced and overall life of the writer is prolonged. The main body may comprise any noble metal or metal alloy suitable for achieving optical resonance in an HAMR NFT. The cladding material may be selected such that its coefficient of thermal expansion closely matches the coefficient of thermal expansion of the pin material.
摘要翻译： 公开了一种包括具有高折射率和低吸收系数的引脚材料的HAMR NFT引脚和主体结构。 所公开的NFT引脚提供了与常规Au引脚相当的介质吸收效率，同时提高了整体NFT的可靠性。 NFT销的突起减小，作者的整个寿命延长。 主体可以包括适合于在HAMR NFT中实现光学共振的任何贵金属或金属合金。 可以选择包层材料，使得其热膨胀系数与针材料的热膨胀系数近似匹配。
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公开(公告)号：US09159346B1
公开(公告)日：2015-10-13
申请号：US14598490
申请日：2015-01-16
发明人： Jiangrong Cao , Michael V. Morelli , Hongxing Yuan , Peng Zhang , Brad V. Johnson , Matthew R. Gibbons
CPC分类号： G11B5/4866 , G11B5/6088 , G11B2005/0021
摘要： An apparatus for energy assisted magnetic recording of a storage disk includes a plurality of dielectric waveguide cores disposed near an air bearing surface of a magnetic recording device. Each waveguide core has a fine ridge feature on a first surface of the waveguide core and configured to receive incident light energy from an energy source. A near field transducer (NFT) is formed at the air bearing surface for focusing light energy received from the waveguide core and transmitting the focused light energy onto the storage disk surface to generate a heating spot. The NFT includes at least one plasmonic metal element disposed above the fine ridge features of the waveguide cores to form an interface for delivering propagating surface plasmon polaritons (PSPPs) to the air bearing surface. Each fine ridge feature is configured with a width approximately equivalent to a width of the heating spot.
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公开(公告)号：US09142233B1
公开(公告)日：2015-09-22
申请号：US14297975
申请日：2014-06-06
发明人： Matthew R. Gibbons , Hongxing Yuan , Brad V. Johnson , Michael V. Morelli , Lisha Wang , Zhigang Bai , Ge Yi , Yunfei Li , Samuel W. Yuan
CPC分类号： G11B5/00826 , G11B5/187 , G11B5/314 , G11B5/6088 , G11B2005/0021 , G11B2005/0029
摘要： A heat assisted magnetic recording (HAMR) write transducer has an air-bearing surface (ABS) configured to reside in proximity to a media during use and is coupled with a laser that provides energy. The HAMR transducer includes a main pole, at least one additional pole adjacent to the main pole in a down track direction, a waveguide and at least one coil for energizing the main pole. The main pole is configured to write to a region of the media and is recessed from the ABS by a first distance. The additional pole(s) are recessed from the ABS by a second distance greater than the first distance. The waveguide is optically coupled with the laser and directs a portion of the energy toward the ABS at an acute angle from the ABS. A portion of the waveguide resides between the additional pole(s) and the ABS.
摘要翻译： 热辅助磁记录（HAMR）写传感器具有配置成在使用期间驻留在介质附近的空气轴承表面（ABS），并且与提供能量的激光器耦合。 HAMR传感器包括主极，沿着向下轨道方向与主极相邻的至少一个附加极，波导和用于激励主极的至少一个线圈。 主极被配置为写入介质的区域并且从ABS凹入第一距离。 附加的杆从ABS凹入大于第一距离的第二距离。 波导与激光器光学耦合，并将一部分能量从ABS引导到ABS。 波导的一部分位于附加极和ABS之间。
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